Submission #236931

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
236931	2020-06-04 02:48:51	Lucina	Duathlon (APIO18_duathlon)	C++17	18 / 100	1093 ms	45264 KiB

count_triplets

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#include<bits/stdc++.h>
using namespace std;
int const nax = 2e5 + 10;
struct DSU {
    int par[nax];
    int sz[nax];
    int n;
    DSU (int n) {
        this->n = n;
        iota(par + 1, par + 1 + n, 1);
        fill(sz + 1, sz + 1 + n, 1);
    }
    int find (int x) {
        return x == par[x] ? x : par[x] = find(par[x]);
    }
    bool unite (int x, int y) {
        x = find(x), y = find(y);
        if (x == y) return false;
        if (sz[x] < sz[y]) swap(x, y);
        sz[x] += sz[y];
        par[y] = x;
        return true;
    }
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

count_triplets.cpp: In function 'int main()':
count_triplets.cpp:111:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d %d", &n, &m);
     ~~~~~^~~~~~~~~~~~~~~~~
count_triplets.cpp:117:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &edge.first, &edge.second);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 5
• Subtask 2: 0 / 11
• Subtask 3: 8 / 8
• Subtask 4: 10 / 10
• Subtask 5: 0 / 13
• Subtask 6: 0 / 15
• Subtask 7: 0 / 20
• Subtask 8: 0 / 8
• Subtask 9: 0 / 10